Temperature-dependence of the near-UV absorption of water vapor in the 290-350nm range

被引：4

作者：

Wang, Zhe-Chen ^{[1
]}

Yin, Bangsheng ^{[2
]}

Min, Qilong ^{[2
]}

Zhu, Lei ^{[1
,3
]}

机构：

[1] New York State Dept Hlth, Wadsworth Ctr, Albany, NY 12201 USA

[2] SUNY Albany, Atmospher Sci Res Ctr, Albany, NY 12222 USA

[3] SUNY Albany, Dept Environm Hlth Sci, Albany, NY 12222 USA

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2022年 / 286卷

基金：

美国国家科学基金会;

关键词：

Water vapor; Absorption cross-sections; Temperature dependence; Near-UV; Cavity ring-down spectroscopy; Radiative transfer modeling; CROSS-SECTIONS; CAVITY RING; SPECTROSCOPY; SPECTRA; SPECTROMETER; COEFFICIENT; OZONE; NM;

D O I：

10.1016/j.jqsrt.2022.108204

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Water vapor plays a critical role in the energy balance of the Earth's atmosphere. But there are limited experimental measurements of single photon water vapor absorption spectra and absorption strengths in the near-UV region. We determined the temperature-dependent absorption cross-sections of water vapor at 1 nm increments in the 290-350 nm range by using cavity ring-down spectroscopy. Water vapor exhibited structured absorption bands in this region, with cross-sections ranging from 1.4 x 10(-25) to 6.0 x 10(-25) cm(2)/molecule at 283 K; 1.6 x 10(-25) to 8.9 x 10(-25) cm(2)/molecule at 313 K; and 1.9 x 10(-25) to 1.0 x 10(-24) cm2/molecule at 333 K. A radiative transfer model was used to evaluate atmospheric impacts of water vapor near-UV absorption using laboratory temperature-dependent cross-section data. (c) 2022 Elsevier Ltd. All rights reserved.

引用

页数：12

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